Semiconductor package devices integrated with inductor

ABSTRACT

The present disclosure provides an inductor structure. The inductor structure, comprising a first surface, a second surface intersecting with the first surface, a first conductive pattern and a second conductive pattern. The first conductive pattern is formed on the first surface. The second conductive pattern is formed on the second surface. The first conductive pattern is connected with the second conductive pattern.

CROSS REFERENCE TO RELATED APPLICATIONS

This application claims the benefit of a prior-filed non-provisional application Ser. No. 15/088,128, filed Apr. 1, 2016, the disclosure of which is hereby incorporated by reference in its entirety.

BACKGROUND

Near Field Communication (NFC) or wireless charging is a short-distance, high-frequency wireless communication technology and includes contact-free radio frequency identification (RFID) and interconnection technologies. The NFC technology can be applied to products such as a credit card, an ID card, a smart phone, and a tablet computer, so as to provide services such as identity verification and transaction payment. It would be desirable to improve communication quality and increase communication distance of NFC.

BRIEF DESCRIPTION OF THE DRAWINGS

Aspects of the present disclosure are best understood from the following detailed description when read with the accompanying drawings. It is noted that, in accordance with the practices in the industry, various features are not drawn to scale. In fact, the dimensions of the various features may be arbitrarily increased or reduced for clarity of discussion.

FIG. 1A is a three-dimensional (3D) view of a semiconductor package device, in accordance with some embodiments.

FIG. 1B is a side view of a semiconductor package device shown in FIG. 1A, in accordance with some embodiments.

FIG. 2 is a 3D view of a semiconductor package device, in accordance with some embodiments.

FIG. 3 is a 3D view of a semiconductor package device, in accordance with some embodiments.

FIG. 4 is a 3D view of a semiconductor package device, in accordance with some embodiments.

FIG. 5 is a 3D view of a semiconductor package device, in accordance with some embodiments.

FIG. 6 is a 3D view of a semiconductor package device, in accordance with some embodiments.

FIG. 7 is a block diagram of a semiconductor device, in accordance with some embodiments.

DETAILED DESCRIPTION

The following disclosure provides many different embodiments, or examples, for implementing different features of the present invention. Specific examples of components and arrangements are described below to simplify the present disclosure. These are, of course, merely examples and are not intended to be limiting. For example, the formation of a first feature over or on a second feature in the description that follows may include embodiments in which the first and second features are formed in direct contact, and may also include embodiments in which additional features may be formed between the first and second features, such that the first and second features may not be in direct contact. In addition, the present disclosure may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed.

Further, spatially relative terms, such as “beneath,” “below,” “lower,” “above,” “upper” and the like, may be used herein for ease of description to describe one element or feature's relationship with another element(s) or feature(s) as illustrated in the drawings. The spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the drawings. The apparatus may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein may likewise be interpreted accordingly.

Notwithstanding that the numerical ranges and parameters setting forth the broad scope of the present invention are approximations, the numerical values set forth in the specific examples are reported as precisely as possible. Any numerical value, however, inherently contains certain errors necessarily resulting from the standard deviation found in the respective testing measurements. Also, as used herein, the term “about” generally means within 10%, 5%, 1%, or 0.5% of a given value or range. Alternatively, the term “about” means within an acceptable standard error of the mean when considered by one of ordinary skill in the art. Other than in the operating/working examples, or unless otherwise expressly specified, all of the numerical ranges, amounts, values and percentages such as those for quantities of materials, durations of times, temperatures, operating conditions, ratios of amounts, and the likes thereof disclosed herein should be understood as modified in all instances by the term “about.” Accordingly, unless indicated to the contrary, the numerical parameters set forth in the present disclosure and attached claims are approximations that can vary as desired. Each numerical parameter should at least be construed in light of the number of reported significant digits and by applying ordinary rounding techniques. Ranges can be expressed herein as from one endpoint to another endpoint or between two endpoints. All ranges disclosed herein are inclusive of the endpoints, unless specified otherwise.

FIG. 1A illustrates a three-dimensional (3D) view of a semiconductor package device 1 in accordance with one embodiment of the present disclosure. The semiconductor package device 1 has six surfaces, a bottom surface 10, four lateral surfaces 11, 12, 13, 14 and a top surface 15. The top surface 15 is opposite to the bottom surface 10. Four lateral surfaces 11, 12, 13, 14 are extended between the top surface 15 and the bottom surface 10 and are substantially perpendicular to the top surface 15 and the bottom surface 10. The lateral surface 11 is opposite to the lateral surface 12 and substantially perpendicular to the lateral surfaces 13, 14.

The bottom surface 10 of the semiconductor package device 1 has a conductive pattern 10 a. The conductive pattern 10 a may be any conductive material, such as copper, nickel, aluminum, tungsten, titanium, any combination thereof, or the like. As shown in FIG. 1A, the conductive pattern 10 a has a plurality of conductive metals. The conductive metals of the conductive pattern 10 a are separated from each other and are substantially parallel to each other.

The lateral surface 11 of the semiconductor package device 1 has a conductive pattern 11 a. The conductive pattern 11 a may be any conductive material, such as copper, nickel, aluminum, tungsten, titanium, any combination thereof, or the like. The conductive pattern 11 a has a plurality of separated conductive metals. Each conductive metal of the conductive pattern 11 a are connected with the corresponding conductive metals of the conductive pattern 10 a.

The lateral surface 12 of the semiconductor package device 1 has a conductive pattern 12 a. The conductive pattern 12 a may be any conductive material, such as copper, nickel, aluminum, tungsten, titanium, any combination thereof, or the like. The conductive pattern 12 a has a plurality of separated conductive metals. Each conductive metal of the conductive pattern 12 a are connected with the corresponding conductive metals of the conductive pattern 10 a.

The conductive pattern 10 a on the bottom surface 10, the conductive pattern 11 a on the lateral surface 11 and the conductive pattern 12 a on the lateral surface 12 jointly define a coil, an inductor or a transformer. In some embodiments of the present disclosure, the coil, the inductor or the transformer can be connected to circuits (not shown) integrated in the semiconductor package device 1 to form a transmitter or a receiver. Alternatively, the coil, the inductor or the transformer can be connected to circuits exterior to the semiconductor package device 1 to form a transmitter or a receiver.

Based on the electromagnetic induction theory, two inductors should be placed to be parallel to each other to get a maximum power interchange. For example, to let a receiver to receive a maximum power from a transmitter, the inductor of the receiver should be arranged to be parallel to that of the transmitter. That is, the inductor of the receiver should be aligned with that of the transmitter. In some embodiments, the semiconductor package device has a conductive pattern only on one surface, and thus the magnetic field of the inductor of the semiconductor package device can be only transmitted or received in one direction. Therefore, the inductor of the receiver should be aligned with that of the transmitter to receive the maximum magnetic field, resulting in that the design or the placement of the transmitter and the receiver is not flexible.

As shown in FIG. 1A, because the semiconductor package device 1 has conductive patterns on three surfaces, it can receive or transmit magnetic field in three directions (i.e., the direction perpendicular to the bottom surface 10, the direction perpendicular to the lateral surface 11 and the direction perpendicular to the lateral surface 12). In comparison with the semiconductor package device having only one surface with a conductive pattern, the semiconductor package device 1 shown in FIG. 1A can be design or placed more flexible to receive or transmit the magnetic field. In addition, the semiconductor package device 1 shown in FIG. 1A has better communication quality in the case that the transmitter and the receiver are misaligned.

FIG. 1B illustrates a side view from the lateral surface 11 of the semiconductor package device 1 in FIG. 1A. The semiconductor package device 1 comprises a plurality of stacked carriers 20, 21, 22, 23, 24, 25.

In some embodiments, the carrier 20 may be a substrate or a printed circuit board, such as a ceramic substrate, a paper-based copper foil laminate, a composite copper foil laminate, or a polymer-impregnated glass-fiber-based copper foil laminate. Alternatively, the carrier 20 may be any dielectric layer, such as boro-phospho-silicate-glass (BPSG), silicon oxide, silicon nitride, silicon oxynitride, undoped Silicon Glass (USG), any combination thereof, or the like.

The conductive pattern 10 a is on a top surface of the carrier 20. The conductive pattern 10 a may be any conductive material, such as copper, nickel, aluminum, tungsten, titanium, any combination thereof, or the like. The conductive pattern has a plurality of conductive metals 10 a 1, 10 a 2, 10 a 3, 10 a 4, 10 a 5, 10 a 6, 10 a 7, 10 a 8, 10 a 9, 10 a 10, all of which are separated from each other.

The carrier 21 is located on the carrier 20 to encapsulate the conductive pattern 10 a. The carrier 20 may be any dielectric layer, such as molding compounds, pre-impregnated composite fibers (e.g., pre-preg) BPSG, silicon oxide, silicon nitride, silicon oxynitride, USG, any combination thereof, or the like. Examples of molding compounds may include, but are not limited to, an epoxy resin having fillers dispersed therein. Examples of a pre-preg may include, but are not limited to, a multi-layer structure formed by stacking or laminating a number of pre-impregnated materials/sheets.

The conductive metal 21 a is on a top surface of the carrier 21. The conductive pattern 21 a may be any conductive material, such as copper, nickel, aluminum, tungsten, titanium, any combination thereof, or the like. In some embodiments, the conductive metal 21 a is arranged in a direction substantially perpendicular to each conductive metal on the first carrier 20. Alternatively, the conductive metal 21 a may be arranged in any direction based on the requirement of design. Through vias 21 v penetrate the carrier 21 and electrically connect the conductive metal 21 a to the conductive metals 10 a 5 and 10 a 6. In some embodiments, the conductive metal 21 a can be a redistribution layer (RDL) over the carrier 21.

The carrier 22 is located on the carrier 21 to encapsulate the conductive pattern 21 a. The carrier 22 may be any dielectric layer, such as molding compounds, pre-impregnated composite fibers (e.g., pre-preg) BPSG, silicon oxide, silicon nitride, silicon oxynitride, USG, any combination thereof, or the like. Examples of molding compounds may include, but are not limited to, an epoxy resin having fillers dispersed therein. Examples of a pre-preg may include, but are not limited to, a multi-layer structure formed by stacking or laminating a number of pre-impregnated materials/sheets.

The conductive metal 22 a is on a top surface of the carrier 22. The conductive pattern 22 a may be any conductive material, such as copper, nickel, aluminum, tungsten, titanium, any combination thereof, or the like. In some embodiments, the conductive metal 22 a is arranged in a direction substantially perpendicular to each conductive metal on the first carrier 20. Alternatively, the conductive metal 22 a may be arranged in any direction based on the requirement of design. Through vias 22 v penetrate the carriers 22 and 21 and electrically connect the conductive metal 22 a to the conductive metals 10 a 4 and 10 a 7. In some embodiments, the conductive metal 22 a can be a redistribution layer (RDL) over the carrier 22.

The carrier 23 is located on the carrier 22 to encapsulate the conductive pattern 22 a. The carrier 23 may be any dielectric layer, such as molding compounds, pre-impregnated composite fibers (e.g., pre-preg) BPSG, silicon oxide, silicon nitride, silicon oxynitride, USG, any combination thereof, or the like. Examples of molding compounds may include, but are not limited to, an epoxy resin having fillers dispersed therein. Examples of a pre-preg may include, but are not limited to, a multi-layer structure formed by stacking or laminating a number of pre-impregnated materials/sheets.

The conductive metal 23 a is on a top surface of the carrier 23. The conductive pattern 23 a may be any conductive material, such as copper, nickel, aluminum, tungsten, titanium, any combination thereof, or the like. In some embodiments, the conductive metal 23 a is arranged in a direction substantially perpendicular to each conductive metal on the first carrier 20. Alternatively, the conductive metal 23 a may be arranged in any direction based on the requirement of design. Through vias 23 v penetrate the carriers 23, 22 and 21 and electrically connect the conductive metal 23 a to the conductive metals 10 a 3 and 10 a 8. In some embodiments, the conductive metal 23 a can be a redistribution layer (RDL) over the carrier 23.

The carrier 24 is located on the carrier 23 to encapsulate the conductive pattern 23 a. The carrier 24 may be any dielectric layer, such as molding compounds, pre-impregnated composite fibers (e.g., pre-preg) BPSG, silicon oxide, silicon nitride, silicon oxynitride, USG, any combination thereof, or the like. Examples of molding compounds may include, but are not limited to, an epoxy resin having fillers dispersed therein. Examples of a pre-preg may include, but are not limited to, a multi-layer structure formed by stacking or laminating a number of pre-impregnated materials/sheets.

The conductive metal 24 a is on a top surface of the carrier 24. The conductive pattern 24 a may be any conductive material, such as copper, nickel, aluminum, tungsten, titanium, any combination thereof, or the like. In some embodiments, the conductive metal 24 a is arranged in a direction substantially perpendicular to each conductive metal on the first carrier 20. Alternatively, the conductive metal 24 a may be arranged in any direction based on the requirement of design. Through vias 24 v penetrate the carriers 24, 23, 22 and 21 and electrically connect the conductive metal 24 a to the conductive metals 10 a 2 and 10 a 9. In some embodiments, the conductive metal 24 a can be a redistribution layer (RDL) over the carrier 24.

The carrier 25 is located on the carrier 24 to encapsulate the conductive pattern 24 a. The carrier 25 may be any dielectric layer, such as molding compounds, pre-impregnated composite fibers (e.g., pre-preg) BPSG, silicon oxide, silicon nitride, silicon oxynitride, USG, any combination thereof, or the like. Examples of molding compounds may include, but are not limited to, an epoxy resin having fillers dispersed therein. Examples of a pre-preg may include, but are not limited to, a multi-layer structure formed by stacking or laminating a number of pre-impregnated materials/sheets.

The conductive metal 25 a is on a top surface of the carrier 25. The conductive pattern 25 a may be any conductive material, such as copper, nickel, aluminum, tungsten, titanium, any combination thereof, or the like. In some embodiments, the conductive metal 25 a is arranged in a direction substantially perpendicular to each conductive metal on the first carrier 20. Alternatively, the conductive metal 25 a may be arranged in any direction based on the requirement of design. Through vias 25 v penetrate the carriers 25, 24, 23, 22 and 21 and electrically connect the conductive metal 25 a to the conductive metals 10 a 1 and 10 a 10. In some embodiments, the conductive metal 25 a can be a redistribution layer (RDL) over the carrier 25.

The conductive metals 21 a, 22 a, 23 a, 24 a, 25 a and the through vias 21 v, 22 v, 23 v, 24 v, 25 v jointly form the conductive pattern 11 a on the lateral surface 11 of the semiconductor package device 1 shown in FIG. 1A. The through vias 21 v, 22 v, 23 v, 24 v, 25 v are conductive materials arranged vertically to connect conductive metals of adjacent layers, and may be referred to conductive contacts herein. In some embodiments, a semiconductor chip or a semiconductor die is embedded in one or more of the carriers 21, 22, 23, 24, 25 and electrically coupled to the corresponding conductive metals 21 a, 22 a, 23 a, 24 a, 25 a or through vias 21 v, 22 v, 23 v, 24 v, 25 v, according to various packaging designs. As mentioned above, since the semiconductor package device 1 has conductive patterns on the bottom surface 10 and lateral surfaces 11, 12, it can receive or transmit magnetic field in three directions. In comparison with the semiconductor package device having only one surface with a conductive pattern, the semiconductor package device 1 shown in FIG. 1A can be design or placed more flexible to receive or transmit the magnetic field. In addition, the semiconductor package device 1 shown in FIG. 1A has better communication quality in the case that the transmitter and the receiver are misaligned.

FIG. 2 illustrates a three-dimensional view of a semiconductor package device 3 in accordance with one embodiment of the present disclosure. The semiconductor package device 3 has six surfaces, a bottom surface 30, four lateral surfaces 31, 32, 33, 34 and a top surface 35. The top surface 35 is opposite to the bottom surface 30. Four lateral surfaces 31, 32, 33, 34 are extended between the top surface 35 and the bottom surface 30 and are substantially perpendicular to the top surface 35 and the bottom surface 30. The lateral surface 31 is opposite to the lateral surface 32 and substantially perpendicular to the lateral surfaces 33, 34.

The bottom surface 30 of the semiconductor package device 3 has a conductive pattern 30 a. The conductive pattern 30 a may be any conductive material, such as copper, nickel, aluminum, tungsten, titanium, any combination thereof, or the like. As shown in FIG. 2, the conductive pattern 30 a has a plurality of conductive metals. The conductive metals of the conductive pattern 30 a are separated from each other and are substantially parallel to each other.

The lateral surface 31 of the semiconductor package device 3 has a conductive pattern 31 a. The conductive pattern 31 a may be any conductive material, such as copper, nickel, aluminum, tungsten, titanium, any combination thereof, or the like. The conductive pattern 31 a has a plurality of conductive metals. The conductive metals of the conductive pattern 31 a are separated from each other and are parallel to each other. Each conductive metal of the conductive pattern 31 a is connected with the corresponding conductive metal of the conductive pattern 30 a.

The lateral surface 32 of the semiconductor package device 3 has a conductive pattern 32 a. The conductive pattern 32 a may be any conductive material, such as copper, nickel, aluminum, tungsten, titanium, any combination thereof, or the like. The conductive pattern 32 a has a plurality of conductive metals. The conductive metals of the conductive pattern 32 a are separated from each other and are parallel to each other. Each conductive metal of the conductive pattern 32 a is connected with the corresponding conductive metal of the conductive pattern 20 a.

The top surface 35 of the semiconductor package device 3 has a conductive pattern 35 a. The conductive pattern 35 a may be any conductive material, such as copper, nickel, aluminum, tungsten, titanium, any combination thereof, or the like. The conductive pattern 35 a has a plurality of separated conductive metals. Each conductive metal of the conductive pattern 35 a are connected with the corresponding conductive metal of the conductive pattern 30 a and the corresponding conductive metal of the conductive pattern 31 a.

The conductive pattern 30 a on the bottom surface 30, the conductive pattern 31 a on the lateral surface 31, the conductive pattern 32 a on the lateral surface 32 and the conductive pattern 35 a on the top surface 35 jointly define a coil, an inductor or a transformer. In some embodiments of the present disclosure, the coil, the inductor or the transformer can be connected to circuits (not shown) integrated in the semiconductor package device 3 to form a transmitter or a receiver. Alternatively, the coil, the inductor or the transformer can be connected to circuits exterior to the semiconductor package device 3 to form a transmitter or a receiver.

As shown in FIG. 2, because the semiconductor package device 3 has conductive patterns on four surfaces, it can receive or transmit magnetic field in four directions (i.e., the direction perpendicular to the bottom surface 30, the direction perpendicular to the lateral surface 31, the direction perpendicular to the lateral surface 32 and the direction perpendicular to the top surface 35). In comparison with the semiconductor package device having only one surface with a conductive pattern, the semiconductor package device 3 shown in FIG. 2 can be design or placed more flexible to receive or transmit the magnetic field. In addition, the semiconductor package device 3 shown in FIG. 2 has better communication quality in the case that the transmitter and the receiver are misaligned.

FIG. 3 illustrates a three-dimensional view of a semiconductor package device 4 in accordance with one embodiment of the present disclosure. The semiconductor package device 4 has six surfaces, a bottom surface 40, four lateral surfaces 41, 42, 43, 44 and a top surface 45. The top surface 45 is opposite to the bottom surface 40. Four lateral surfaces 41, 42, 43, 44 are extended between the top surface 45 and the bottom surface 40 and are substantially perpendicular to the top surface 45 and the bottom surface 40. The lateral surface 41 is opposite to the lateral surface 42 and substantially perpendicular to the lateral surfaces 43, 44.

The bottom surface 40 of the semiconductor package device 4 has a conductive pattern 40 a. The conductive pattern 40 a may be any conductive material, such as copper, nickel, aluminum, tungsten, titanium, any combination thereof, or the like. As shown in FIG. 3, the conductive pattern 40 a has a plurality of separated conductive metals.

The lateral surface 41 of the semiconductor package device 4 has a conductive pattern 41 a. The conductive pattern 41 a may be any conductive material, such as copper, nickel, aluminum, tungsten, titanium, any combination thereof, or the like. The conductive pattern 41 a has a plurality of separated conductive metals. Each conductive metal of the conductive pattern 41 a is connected with the corresponding conductive metals of the conductive pattern 40 a.

The lateral surface 42 of the semiconductor package device 4 has a conductive pattern 42 a. The conductive pattern 42 a may be any conductive material, such as copper, nickel, aluminum, tungsten, titanium, any combination thereof, or the like. The conductive pattern 42 a has a plurality of separated conductive metals. Each conductive metal of the conductive pattern 42 a is connected with the corresponding conductive metals of the conductive pattern 40 a.

The lateral surface 43 of the semiconductor package device 4 has a conductive pattern 43 a. The conductive pattern 43 a may be any conductive material, such as copper, nickel, aluminum, tungsten, titanium, any combination thereof, or the like. The conductive pattern 43 a has a plurality of separated conductive metals. Each conductive metal of the conductive pattern 43 a is connected with the corresponding conductive metals of the conductive pattern 40 a.

The lateral surface 44 of the semiconductor package device 4 has a conductive pattern 44 a. The conductive pattern 44 a may be any conductive material, such as copper, nickel, aluminum, tungsten, titanium, any combination thereof, or the like. The conductive pattern 44 a has a plurality of separated conductive metals. Each conductive metal of the conductive pattern 44 a is connected with the corresponding conductive metals of the conductive pattern 40 a.

The conductive pattern 40 a on the bottom surface 40 and the conductive pattern 41 a, 42 a, 43 a, 44 a on the lateral surfaces 31, 32, 33, 34 jointly define a coil, an inductor or a transformer. In some embodiments of the present disclosure, the coil, the inductor or the transformer can be connected to circuits (not shown) integrated in the semiconductor package device 4 to form a transmitter or a receiver. Alternatively, the coil, the inductor or the transformer can be connected to circuits exterior to the semiconductor package device 4 to form a transmitter or a receiver.

As shown in FIG. 3, because the semiconductor package device 4 has conductive patterns on five surfaces, it can receive or transmit magnetic field in five directions (i.e., the direction perpendicular to the bottom surface 40 and the direction perpendicular to the lateral surfaces 41, 42, 43, 44). In comparison with the semiconductor package device having only one surface with a conductive pattern, the semiconductor package device 4 shown in FIG. 3 can be design or placed more flexible to receive or transmit the magnetic field. In addition, the semiconductor package device 4 shown in FIG. 3 has better communication quality in the case that the transmitter and the receiver are misaligned.

FIG. 4 illustrates a three-dimensional view of a semiconductor package device 5 in accordance with one embodiment of the present disclosure. The semiconductor package device 5 has six surfaces, a bottom surface 50, four lateral surfaces 51, 52, 53, 54 and a top surface 55. The top surface 55 is opposite to the bottom surface 50. Four lateral surfaces 51, 52, 53, 54 are extended between the top surface 55 and the bottom surface 50 and are substantially perpendicular to the top surface 55 and the bottom surface 50. The lateral surface 51 is opposite to the lateral surface 52 and substantially perpendicular to the lateral surfaces 53, 54.

The bottom surface 50 of the semiconductor package device 5 has a conductive pattern 50 a. The conductive pattern 50 a may be any conductive material, such as copper, nickel, aluminum, tungsten, titanium, any combination thereof, or the like. As shown in FIG. 4, the conductive pattern 50 a has a plurality of separated conductive metals.

The top surface 55 of the semiconductor package device 5 has a conductive pattern 55 a. The conductive pattern 55 a may be any conductive material, such as copper, nickel, aluminum, tungsten, titanium, any combination thereof, or the like. The conductive pattern 5 a has a plurality of separated conductive metals.

Through vias 50 v penetrate the semiconductor package device 5 and connect each conductive metal of the conductive pattern 55 a with the corresponding conductive metal of the conductive pattern 50 a. In some embodiments, the through vias 50 v are parallel to each other.

The conductive pattern 50 a on the bottom surface 50, the conductive pattern 55 a on the top surface 55 and the through vias 50 v jointly define a coil, an inductor or a transformer. In some embodiments of the present disclosure, the coil, the inductor or the transformer can be connected to circuits (not shown) integrated in the semiconductor package device 5 to form a transmitter or a receiver. Alternatively, the coil, the inductor or the transformer can be connected to circuits exterior to the semiconductor package device 5 to form a transmitter or a receiver.

As shown in FIG. 4, because the semiconductor package device 5 has conductive patterns on two surfaces and through vias penetrating the semiconductor package device 5, it can receive or transmit magnetic field in three directions (i.e., the direction perpendicular to the bottom surface 50, the direction perpendicular to the top surface 55 and the direction perpendicular to the surface defined by the through vias 50 v). In comparison with the semiconductor package device having only one surface with a conductive pattern, the semiconductor package device 5 shown in FIG. 4 can be design or placed more flexible to receive or transmit the magnetic field. In addition, the semiconductor package device 5 shown in FIG. 4 has better communication quality in the case that the transmitter and the receiver are misaligned.

FIG. 5 illustrates a three-dimensional view of a semiconductor package device 6 in accordance with one embodiment of the present disclosure. The semiconductor package device 6 has two separated package devices 60, 61.

The package device 60 has a conductive pattern 60 a on the bottom surface. The conductive pattern 60 a may be any conductive material, such as copper, nickel, aluminum, tungsten, titanium, any combination thereof, or the like. The conductive pattern 60 a may be a coil, an inductor or a transformer.

The package device 61 is located on a top surface of the package device 60. The package device 61 has a conductive pattern 61 a on one surface. The conductive pattern 61 a on the package device 61 is substantially perpendicular to the conductive pattern 60 a on the package device 60. The conductive pattern 61 a may be any conductive material, such as copper, nickel, aluminum, tungsten, titanium, any combination thereof, or the like. The conductive pattern 61 a may be a coil, an inductor or a transformer. The conductive pattern 61 a is connected to the conductive pattern 60 a by through vias 60 v. The through vias 60 v are conductive materials arranged vertically to connect conductive patterns on adjacent package devices, and may be referred to conductive contacts herein. In some embodiments of the present disclosure, the conductive patterns 60 a, 61 a can be connected to circuits (not shown) integrated in the semiconductor package device 6 to form a transmitter or a receiver. Alternatively, the conductive patterns 60 a, 61 a can be connected to circuits exterior to the semiconductor package device 6 to form a transmitter or a receiver.

As shown in FIG. 5, the semiconductor package device 6 can receive or transmit magnetic field in two directions (i.e., the direction perpendicular to the surface defined by the conductive pattern 60 a and the surface defined by the conductive pattern 61 a). In comparison with the semiconductor package device having only one surface with a conductive pattern, the semiconductor package device 6 shown in FIG. 5 can be design or placed more flexible to receive or transmit the magnetic field. In addition, the semiconductor package device 6 shown in FIG. 5 has better communication quality in the case that the transmitter and the receiver are misaligned.

FIG. 6 illustrates a three-dimensional view of a semiconductor package device 7 in accordance with one embodiment of the present disclosure. The semiconductor package device 6 has two separated package devices 70, 71.

The package device 70 has a conductive pattern 70 a on the bottom surface. The conductive pattern 70 a may be any conductive material, such as copper, nickel, aluminum, tungsten, titanium, any combination thereof, or the like. The conductive pattern 70 a has a plurality of separated conductive metals.

The package device 71 is located on a top surface of the package device 70. The package device 71 has a conductive pattern 71 a on one surface. The conductive pattern 71 a on the package device 71 is substantially perpendicular to the conductive pattern 70 a on the package device 70. The conductive pattern 71 a may be any conductive material, such as copper, nickel, aluminum, tungsten, titanium, any combination thereof, or the like. The conductive pattern 71 a has a plurality of separated conductive metals, each connected to the corresponding conductive metal of the conductive pattern 70 a by through vias 70 v. The through vias 70 v are conductive materials arranged vertically to connect conductive patterns on adjacent package devices, and may be referred to conductive contacts herein.

The conductive pattern 70 a, the conductive pattern 71 a and the through vias 70 v jointly define a coil, an inductor or a transformer. In some embodiments of the present disclosure, the coil, the inductor or the transformer can be connected to circuits (not shown) integrated in the semiconductor package device 7 to form a transmitter or a receiver. Alternatively, the coil, the inductor or the transformer can be connected to circuits exterior to the semiconductor package device 7 to form a transmitter or a receiver.

As shown in FIG. 6, the semiconductor package device 7 can receive or transmit magnetic field in two directions (i.e., the direction perpendicular to the surface defined by the conductive pattern 70 a and the surface defined by the conductive pattern 71 a). In comparison with the semiconductor package device having only one surface with a conductive pattern, the semiconductor package device 7 shown in FIG. 6 can be design or placed more flexible to receive or transmit the magnetic field. In addition, the semiconductor package device 7 shown in FIG. 6 has better communication quality in the case that the transmitter and the receiver are misaligned.

FIG. 7 illustrates a block diagram of a semiconductor device 8 in accordance with some embodiments of the present disclosure. The semiconductor device 8 comprises a carrier 80, an integrated circuit (IC) 81 and an inductor 82.

The carrier 80 may be a substrate or a printed circuit board, such as a ceramic substrate, a paper-based copper foil laminate, a composite copper foil laminate, or a polymer-impregnated glass-fiber-based copper foil laminate. Alternatively, the carrier 80 may be any dielectric layer, such as boro-phospho-silicate-glass (BPSG), silicon oxide, silicon nitride, silicon oxynitride, undoped Silicon Glass (USG), any combination thereof, or the like.

The IC 81 is on the carrier 80. The IC 81 may include any of active components, passive elements and the combination thereof. The IC 81 may be connected to the carrier 80 through flip-chip or wire-bond technique.

The inductor 82 is on the carrier 80 and is located exterior to the IC 81. The inductor 82 is electrically connected to the IC 81. In some embodiments, the inductor 82 is any of the semiconductor device package shown in FIGS. 1A and 2-6. Alternatively, the inductor 82 may be any kind of inductor. The inductor 82 includes two terminals, one receiving an input of electrical current, for example, from the IC 81, and the other with the electrical current flowing back to the IC 81. In some embodiments, the two terminals of the inductor 82 are coupled with the IC 81. In some embodiments, the inductor 82 has a dimension comparable to that of the IC 81.

In view of the above, a preferred aspect of the present disclosure is to provide a wafer level package (WLP) inductor. By providing conductive pattern on at least two surfaces of the semiconductor package device, in accordance with some embodiments of the present disclosure, the inductor transmit or receive magnetic field in multiple directions. Therefore, the transmitter or receiver can have better communication quality and reduce the transmission error due to the misalignment of the transmitter and receiver.

Some embodiments of the present disclosure provide an inductor structure. The inductor structure, comprising a first surface, a second surface intersecting with the first surface, a first conductive pattern and a second conductive pattern. The first conductive pattern is formed on the first surface. The second conductive pattern is formed on the second surface. The first conductive pattern is connected with the second conductive pattern.

Some embodiments of the present disclosure provide an inductor structure. The inductor structure comprises a first conductive pattern, the first dielectric layer and a second conductive pattern. The first conducive pattern has a plurality of conductive metals. The first dielectric layer encapsulates the first conductive pattern. The second conductive pattern is on the first dielectric layer. The second conductive pattern is electrically connected with a first conductive metal and a second conductive metal of the first conductive pattern.

In some embodiments of the present disclosure, an inductor structure comprises a first carrier, a first conductive pattern, a second carrier and a second conductive pattern. The first carrier has a first surface. The first conductive pattern is on the first surface of the first carrier. The second carrier is at one edge of the first carrier. The second carrier has a second surface substantially perpendicular to the first surface of the first carrier. The second conductive pattern is on the second surface of the second carrier. The second conductive pattern is electrically connected with the first conductive pattern.

The foregoing outlines features of several embodiments so that those skilled in the art may better understand the aspects of the present disclosure. Those skilled in the art should appreciate that they may readily use the present disclosure as a basis for designing or modifying other processes and structures for carrying out the same purposes and/or achieving the same advantages of the embodiments introduced herein. Those skilled in the art should also realize that such equivalent constructions do not depart from the spirit and scope of the present disclosure and that they may make various changes, substitutions, and alterations herein without departing from the spirit and scope of the present disclosure. 

What is claimed is:
 1. An inductor structure, comprising: a first carrier having a first surface; a first conductive pattern on the first surface of the first carrier; a second carrier at one edge of the first carrier, the second carrier having a second surface substantially perpendicular to the first surface of the first carrier; and a second conductive pattern on the second surface of the second carrier, wherein the second conductive pattern is electrically connected with the first conductive pattern.
 2. The inductor structure of claim 1, wherein the first conductive pattern is a coil with two terminals and the second conductive pattern is a coil with two terminals, and both terminals of the first conductive pattern are connected with both terminals of the second conductive pattern.
 3. The inductor structure of claim 2, wherein the first conductive pattern is connected with the second conductive pattern through conductive contacts, and wherein the second conductive pattern forms a spiral.
 4. The inductor structure of claim 3, wherein the first conductive pattern forms a spiral.
 5. The inductor structure of claim 1, wherein the first conductive pattern has a plurality of separated conductive metals; the second conductive pattern has a plurality of separated conductive metals; and each conductive metal of the first conductive pattern is connected with the corresponding conductive metal of the second conductive pattern to form a coil.
 6. The inductor structure of claim 3, wherein the conductive contact is a through via.
 7. The inductor structure of claim 4, wherein each conductive metal of the first conductive pattern is connected with the corresponding conductive metal of the second conductive pattern by a through via perpendicular to the first conductive pattern.
 8. An inductor structure, comprising: a first carrier having a first surface; a first conductive pattern on the first surface of the first carrier, having a plurality of separated conductive metals; a second carrier at one edge of the first carrier, the second carrier having a second surface substantially perpendicular to the first surface of the first carrier; and a second conductive pattern on the second surface of the second carrier, having a plurality of separated conductive metals, wherein the second conductive pattern is electrically connected with the first conductive pattern.
 9. The inductor structure of claim 8, wherein each conductive metal of the first conductive pattern is connected with the corresponding conductive metal of the second conductive pattern.
 10. The inductor structure of claim 9, wherein the first conductive pattern and the second conductive pattern form a coil through a plurality of vias.
 11. The inductor structure of claim 8, wherein the first surface is a bottom surface of the first carrier.
 12. The inductor structure of claim 11, wherein the second carrier is disposed on a top surface opposite to the bottom surface of the first carrier.
 13. A semiconductor device, comprising: a first carrier; an integrated circuit (IC) positioned on the first carrier; and an inductor structure positioned on the first carrier and adjacent to the IC; wherein the IC is electrically connected with the inductor structure.
 14. The semiconductor device of claim 13, wherein the inductor structure further comprises: a first surface and a second surface intersecting with the first surface; a first conductive pattern on the first surface, comprising a plurality of first conductive metals; a second conductive pattern on the second surface, comprising: a plurality of conductive contacts, each in direct contact with one of the plurality of the first conductive metals on the first surface; and a plurality of second conductive metals on the second surface, and each having a distance to the first surface different from others of the plurality of second conductive metals.
 15. The semiconductor device of claim 14, wherein the inductor structure further comprises a third conductive pattern on a third surface, the third surface being opposite to the second surface, the third conductive pattern being connected with the first conductive pattern.
 16. The semiconductor device of claim 15, further comprising a fourth conductive pattern formed on a fourth surface, the fourth surface being opposite to the first surface, the fourth conductive pattern being connected with the second conductive pattern and the third conductive pattern.
 17. The semiconductor device of claim 13, wherein the inductor structure further comprises: a second carrier having a first surface; a first conductive pattern on the first surface of the second carrier; a third carrier at one edge of the first carrier, the second carrier having a second surface substantially perpendicular to the first surface of the second carrier; and a second conductive pattern on the second surface of the third carrier, wherein the second conductive pattern is electrically connected with the first conductive pattern.
 18. The semiconductor device of claim 17, wherein the first conductive pattern is a coil with two terminals and the second conductive pattern is a coil with two terminals, and both terminals of the first conductive pattern are connected with both terminals of the second conductive pattern.
 19. The semiconductor device of claim 17, wherein the first conductive pattern is connected with the second conductive pattern through conductive contacts, and wherein-the second conductive pattern forms a spiral.
 20. The semiconductor device of claim 17, wherein the first conductive pattern has a plurality of separated conductive metals; the second conductive pattern has a plurality of separated conductive metals; and each conductive metal of the first conductive pattern is connected with the corresponding conductive metal of the second conductive pattern to form a coil. 